<?php
$to      = '512701323@qq.com';
$subject = 'the subject';
$message = "Line 1\nLine 2\nLine 3";
$headers = 'From: danny@simplebyte.net' . "\r\n" .
    'Reply-To: danny@simplebyte.net' . "\r\n" .
    'X-Mailer: PHP/' . phpversion();


// In case any of our lines are larger than 70 characters, we should use wordwrap()
$message = wordwrap($message, 70);
mail($to, $subject, $message, $headers);
?>